| article html file updated | 9 February 2020 11:23 CET | Update | https://www.mdpi.com/2071-1050/10/4/972 |
| article html file updated | 2 October 2019 00:10 CEST | Update | - |
| article html file updated | 1 May 2019 08:27 CEST | Update | - |
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| article html file updated | 2 May 2018 11:03 CEST | Update | - |
| article html file updated | 27 March 2018 08:41 CEST | Original file | - |
| article xml uploaded. | 27 March 2018 08:40 CEST | Original file | https://www.mdpi.com/2071-1050/10/4/972/xml |
| article pdf uploaded. | 27 March 2018 08:40 CEST | Version of Record | https://www.mdpi.com/2071-1050/10/4/972/pdf |
